20509048

素因数分解:

$2^3\times 7^2\times {\mathrm{113}}^1\times {\mathrm{463}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 45226080

約数和(自身を除く): 24717032

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 113, 196, 226, 392, 452, 463, 791, 904, 926, 1582, 1852, 3164, 3241, 3704, 5537, 6328, 6482, 11074, 12964, 22148, 22687, 25928, 44296, 45374, 52319, 90748, 104638, 181496, 209276, 366233, 418552, 732466, 1464932, 2563631, 2929864, 5127262, 10254524, 20509048]

約数ペア:

[(1, 20509048), (2, 10254524), (4, 5127262), (7, 2929864), (8, 2563631), (14, 1464932), (28, 732466), (49, 418552), (56, 366233), (98, 209276), (113, 181496), (196, 104638), (226, 90748), (392, 52319), (452, 45374), (463, 44296), (791, 25928), (904, 22687), (926, 22148), (1582, 12964), (1852, 11074), (3164, 6482), (3241, 6328), (3704, 5537)]